Automatic gas-fixture.



E. M. JOHNSON. AUTOMATIC GAS FIXTURE. APPLIoATroN FILED rBB.s,19o9.

Patented May 3, 1910.

4Q ...547/ IHM-GTI? wnNEssEs EDWIN M. JOHNSON, F PHILADELPHIA,PENNSYLVANIA.

AUTOMATIC GAS-FIXTURE.

Specification of Letters Patent.

Patented May 3, 1910.

Application led February 8, 1909. Serial No. 476,694.

To all cvhom 'it may concern:

Be it known that I, EUWIN M. JOHNSON,

a citizen of the United States, residing. at

Philadelphia, in the county'or' Philadelphia and State of Pennsylvania,have invented' a certain new and useful Improvement in AutomaticGas-Fixtures, of which the following is a specification. l

My invention relates to a new and useful improvement in automatic gasfixtures, and has for its object to provide an exceedingly simple andeffective device of this character whereby the gas may be automaticallyturned off should any 'of the loose connections become broken ordisconnected.

Often the loose connections to a gas stove or lamp from a gas jet orindependent cock are disconnected by accident or carelessness, which notbeing noticed by a person causes loss oflife by asphyxiation, but by theuse of my improvement this will be entirely overcome, for as soon as theparts have disctinnected the gas will be automatically shut o With theseends in view, this invention consists in thedetails of construction andcombination of elements hereinafter set forth and then specificallydesignated by the claims.

In order that those skilled in the art to ,which this inventionappertains may under.-

stand how to make and use the same,^I will describe its construction indetail, referring by letter "to the accompanying drawing forming a partof this specification, in which'- Figure 1 is a longitudinal sectionalview -of my lmproved automatic gas fixture the hose and valve unseatingmember .being removed. Fig. 2, a similar view showing it applied to anindependent gas cockand hose connection. Fig. 3, a similar view showingit applied to a gas jet. Fig. 4, asimilar view as it is placed in theend of a gas hose the valve unseating member not being shown. Fig.-5, anend view of the valve operating member.

In carrying out my invention ashere embodied, A re resents a connecfin-member provided wit a valve retaining c amber B and having'threads Cformed on the outer surface thereof, and this member A is ada ted to bethreaded on to a gas jet, an ind pendent gas `cock 'or other similarobject. The end of the member A` is beveled, as indicated at D, so thatit will readily sit of adapted to engage with the threads C.

formed on the member A.

lVithin the valve retaining chamber B is placed the spiral spring I, oneend of which rests against the upper wall of the valvefretaining chamberB, and the other against the ball valve. J for normally pressing saidball valve against its. seat, thereby shutting oli the flow of gas.

VVith'in the hose gas burner, stove or lamp with whicha connection ismade is placed the valve operating member K, which has a corrugated bodyL and a stem M, said stem adapted to pass through the opening in themember F and raise the ball valve J vaway from its seat, which willpermit the gas to fiow through the gas fixture.

Of course it is understood that the different parts will have to be soconstructed as to conform to the different uses to which it is to beput, such as when the device 1s to be used en an independent gas cock.

ThreadsN are formed in thememb'er A,

which engage with threads on said independent gas cock M', and when thedevice is `to be used on a gas jet, threads O will be formed on theouter surface ofthe member F, so that the burner P may be threadedthereon, but when the device is to be placed in a hose it need not havethreads on the two farthest removed endsof the members A and F, nor needsaid members be of such length as shown, f

On the ends of gas hose there is a rubber portion Q, in which the gasfixture may be placed, as shown in Fig. 4. l In practice the fixture issecured to an independent gas cock, a gas jet or placed 1n a gas'hose.tWhen the device isplaced on an independent gas cockthe valve operatingmember K is placed in the hose, and when the hose is connected to thedevice the stem M of the operating member K w1ll pass upwardthrough themember F, lifting the ball valve J from its seat, which will allow thegas to flow, and shouid the hose bef pulled from the device, the springI will .at once cause the valve J to rest against 1ts seat, shuttingofi' the flow of gas. Vhen the device is used on a as jet the operatingmember K-is placed 1n the burner P, and

as this burner is threaded on the member F, the o eratuugI member willremove the valve J rom its seat. Should the burner y P be threaded onthe member F only a `short fdistance the valve J will be-moved from yitssea-t only a short distance, thusregulating theflow of gas throu h theburner no matter how far o en -the e of the gas 'jet may be turned. whenthe liiture is used in the gas hose the operatinmember vK is placed 1nthe connection of t e gas stove, lam or Aother similar article so thatwhen tlie` ose is disconnected the flow of gas will be shut oil therein.

Of course I do not wish to be limited to the exact details ofconstruction here shown as these may be varied within the limits oi theappended claims without departing from the spirit of mylinventionj.

Having thus fully described my invention, what I claim as new anduseful, 1s-

1. In a device of the character described, a connecting member providedwith a valve retaining chamber, threads formed on the inner surface ofits outer end, other threads formed on the outer surface of its innerend,

A said inner end being beveled, .a hose connecting and valve seatingmember having its inner end beveled to coincide with the bev. eled endof the adjacent.` member, threads formed on the outer surface of itsouter end, a connector having threads on its inner surface adapted tconnect` said members together, a ball valve resting within the valveretaining chamber, a spiral spring also restving within saidchamber for:normally holdthe ball valve against its seat, and a va ve operatin-member having a corrugated body an a stem adapted to open the valvewhen the connection retaining `the same is joined to the as fixture. u

` 2. In'a device o f tle character described,

a connectin member provided with a valve c retaining amber, the innerendof said valve chamber being beveled, a hose con- A -necting and valveseating member havin its inner end beveled to coincide with the eveledendbf the valve chamber, a connector for detachably securing'saidmembers together in such a way that their beveled `faces rest a ainstone another, a'ball valve resting w1thin the valve retaining chamber, a

spiral spring mounted in said chamber for normally holding said ballvalve in contact with its seat, a gas hose adapted to vbe mounted'on theouter-end of the hose con; necting member, a valve operating memberhaving a corrugated bod and a stem carried by said gas hose so t at whensaid hose is placed on the hose connecting member, the stem of theoperating member will press lthe ball valve away from its seat against

